Sweetwater  Mine, Missouri, USA - Colorless to very pale yellowish translucent semi-lustrous prismatic crystals of calcite to 3.7 cm in length set attractively over the top of a 9.5 x 5.5 x 5.0 cm pyrite, chalcopyrite, and dolomite crystal matrix. Very minimal micro-cleaving present, this is in very good condition and sits very nicely by itself for display.

ELMWOOD MINE, SMITH CO., TN, USA - Real nice terminated calcite crystal of 5.5 cm that seats on a small sphalerite matrix. Overall size is 5.5x4x4 cm.

NChwaning II Mine, Kuruman, North Cape Province, South Africa - Very nice and rich specimen of calcite crystals ! The crystal on the back are light pink. In the average the calcites are up to 1 cm and they form nice clusters that emerge from the specimen. The whole specimen shows a very nice fluorescence under UV ! Overall size is 10x8x3 cm.  Weight is 225 gr.

Brushy Creek Mine, Viburnum Trend, Reynolds Co., Missouri, USA - Various yellowish translucent double terminated calcite crystal to 1. cm in length show upon a breccia matrix with crude iridescent purplish blue crystals of chalcopyrite to 0.3-0.4 cm. In very good condition as seen. Size: 13 x 7.5 x 2.0 cm.

San Leone Mine, Assemini, Cagliari Province, Sardinia, Italy - A classic from this mine. This specimen is composed by a cluster of lenticolar calcite crystals to 2.4 cm in size, partly covered by limonite ! There are a lot of crystals ! On the top there is a bright partly gemmy calcite of 1.4 cm wide ! nice specimen of 8.5 × 6.2 × 3 cm. Weight is 200 gr.

Sweetwater Mine, Viburnum Trend District, Reynolds Co., Missouri, USA - Glassy prismatic, terminated, crystals of calcite measuring to 2.5 cm in length set nicely upon matrix. There are various calcite crystals forming a cluster. Incomplete the crystals at the lower part of the cluster but very nice the whole complex. A classic from this locality. Measures 7.0 x 4.0 x 4.0 cm.

Sweetwater Mine, Viburnum Trend District, Reynolds Co., Missouri, USA - Glassy yellow mostly gemmy prismatic, double terminated, crystals of calcite measuring to 5.3 cm in length set nicely upon matrix. One cleaved crystal termination at the extreme far right edge of the matrix, this away from the piece, as seen. The prominent crystal is in excellent condition. Measures 9.0 x 5.0 x 3.0 cm.

Elmwood Mine, Carthage, Smith County, Tennessee, USA - A very nice golden brown terminated crystal of calcite showing the classic scalenohedral habit. There is with a little sphalerite matrix. The terminations are good, though there is a small cleave to the very tip. Super clarity of the calcite ! Overall size is 7.2 × 5.8 × 3.2 cm. Weight is 135 gr

Minerva No. 1 mine, Hardin Co., Illinois, USA - Colorless spiky crystals of calcite measuring to 2.5 cm in height coming off this matrix. Some of the crystals show cleaving. Overall size is 10.5 x 10.0 x 5.0 cm.

San Giovanni Mine, Punta della Torre, Iglesias, Carbonia-Iglesias Province, Sardinia, Italy - An esthetic specimen of calcite from this famous mine. The specimen hosts a great amount of bright calcite crystals, grouped forming clusters ! Very nice and typical from San Giovanni mine. Overall size is 13x8x6 cm. Weight is 515 gr.